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Exam #2 Astronomy Prep. Our Beacon the Sun Questions and Answers 100% Solved
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Exam #2 Astronomy Prep. Our Beacon the Sun
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Exam #2 Astronomy Prep. Our Beaconthe Sun
photosphere, chromosphere, corona - answer What are the outer layers of the Sun in
order?
visible light - answer what wavelength of light do we use to see the photosphere?
UV light - answer what wavelength of light do we use to see the chromosphere?
X-ray light - answer what wavelength of light do we use to see the Corona?
Corona is the most energetic, photosphere least - answer If photons from the Corona
are emitted in the X-ray part of the electromagnetic spectrum, photons from the
chromosphere in the UV and photons from the photosphere in the optical, what are the
relative energies of the processes occurring in these regions?
the top of the photosphere is cooler than the base and thus appears dimmer - answer
Why does limb darkening tell us the inner Sun is hotter?
are the tops of convection cells - answer what are granules?
convection cells - answer hot gas from below rises up, radiates energy, and then cools
and falls back into the photosphere
ropes of gas trapped in magnetic loops associated with sunspots, temperatures can
reach 50,000K - answer what are prominences?
explosive releases of magnetic energy above sunspot groups, when magnetic loops get
tangled, bursts of X-ray/UV light - answer what are flares?
huge bubbles of corona material ejected from the Sun, 2 trillion tons of hot ionized gas
hurled into the Solar System. - answer what are coronal mass ejections?
intensity and wavelength - answer what features of the spectrum of the Sun tell us how
hot it is?
absorption lines - answer what features tell us what the Sun is made of?
magnetic field "loops" popping through the photosphere - answer why are sunspots dark
in color?
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